Abstract
The magnetic pulse welding of Al-A1050 to Mg alloys was successfully performed, and the structural-mechanical properties of the interfacial bonding layer produced between dissimilar metals were studied. The morphology of the interface layer has a typical wavy pattern with an average thickness of 20 μm. Compositional microanalysis showed that the composition of the interfacial layer is Al-50 at-%Mg and is practically uniform, being a direct outcome of the local melting effect, intensive mixing of the melt and a rapid rate of solidification. The composition of the bonding layer corresponds to the Al supersaturated intermetallic β phase (Mg17Al12). The elastic modulus (and the hardness) of the interfacial layer was measured using the nanoindentation technique, and its value of 60±1.4 GPa is in good agreement with the value calculated from first principles in the literature (57.3 GPa) for the Mg17Al12 intermetallic phase.
Original language | English |
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Pages (from-to) | 1809-1813 |
Number of pages | 5 |
Journal | Materials Science and Technology |
Volume | 27 |
Issue number | 12 |
DOIs | |
State | Published - 5 Dec 2011 |
Externally published | Yes |
Keywords
- Al and Mg alloys
- Elastic modulus
- Interfaces
- MPW
- Nanoindentation
ASJC Scopus subject areas
- Materials Science (all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering